Float bath and glass manufacturing apparatus including the same

Patent metadata

Field	Value
Publication number	US-9718719-B2
Application number	US-201414189522-A
Country	US
Kind code	B2
Filing date	Feb 25, 2014
Priority date	Apr 9, 2012
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

Disclosed is a float bath which allows easy temperature control according to an internal position, and a glass manufacturing apparatus and glass manufacturing method including the float bath. The float bath includes a plurality of heaters provided at an upper portion of the float bath to supply heat into the float bath, and a shield provided between predetermined heaters among the plurality of heaters to block heat transfer therebetween.

First claim

What is claimed is:

1. A float bath for manufacturing a float glass, comprising:
a plurality of heaters provided at an upper portion of the float bath to supply heat into the float bath; and
a shield provided between predetermined heaters among the plurality of heaters blocking radiation heat transfer from an adjacent heater,
wherein the shield is adjustable with respect to a vertical direction to form an angle therewith.

2. The float bath according to claim 1 , wherein among the plurality of heaters, every one or more heaters supply different heat quantities.

3. The float bath according to claim 2 , wherein the shield is provided between heaters which supply different heat quantities.

4. The float bath according to claim 1 , wherein the shield has a plate shape.

5. The float bath according to claim 1 , further comprising a temperature measuring unit for measuring an internal temperature of the float bath.

6. The float bath according to claim 5 , wherein the temperature measuring unit measures a temperature of each area classified by the shield.

7. The float bath according to claim 6 , wherein the heater controls a heat quantity supplied to a specific area according to the temperature measured by the temperature measuring unit.

8. The float bath according to claim 1 , wherein the shield is made of refractory material.

9. A glass manufacturing apparatus, which includes the float bath defined in the claim 1 .

Assignees

• Lg Chemical Ltd

Inventors

• Min Kyoung-Hoon
• Im Ye-Hoon
• Park Su-Chan
• Na Sang-Oeb
• Moon Won-Jae

Classifications

• C03B18/16 Primary

  Construction of the float tank; Use of material for the float tank; Coating or protection of the tank wall · CPC title

• Y02P40/57

  Improving the yield, e-g- reduction of reject rates · CPC title

• C03B18/22

  Controlling or regulating the temperature of the atmosphere above the float tank · CPC title

• C03B18/18 Primary

  Controlling or regulating the temperature of the float bath; Composition or purification of the float bath · CPC title

• C03B5/03 Primary

  Tank furnaces · CPC title